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matrix: Add brightness

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This commit is contained in:
Thammi 2013-09-08 08:50:40 +02:00
parent ec9e6d9506
commit 274cf1e054
2 changed files with 22 additions and 13 deletions
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1
firmware/include/pentabug/matrix.h
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@ -10,5 +10,6 @@ void matrix_show(void);
void matrix_init(void);
void matrix_set(uint8_t x, uint8_t y, uint8_t active);
void matrix_brightness(uint8_t x, uint8_t y, uint8_t brightness);
#endif /* MATRIX_H */

34
firmware/lib/matrix.c
View File

@ -3,8 +3,9 @@
#include <pentabug/timer.h>
#include <pentabug/hal.h>
static uint8_t pixels[9];
static uint8_t pixels[9] = {0};
static uint8_t index;
static uint8_t cycle;
void matrix_init(void) {
DDRD |= (1 << 5) | (1 << 6) | (1 << 7);
@ -17,19 +18,19 @@ static void move_line(uint8_t line) {
PORTD &= ~(1 << (line + 5));
}
static void write_line(uint8_t data[]) {
static void write_line(uint8_t data[], uint8_t timing) {
PORTC &= ~((1 << 5) | (1 << 4));
PORTB &= ~(1 << 2);
if(data[0]) {
if(data[0] > timing) {
PORTC |= 1 << 5;
}
if(data[1]) {
if(data[1] > timing) {
PORTC |= 1 << 4;
}
if(data[2]) {
if(data[2] > timing) {
PORTB |= 1 << 2;
}
}
@ -38,16 +39,17 @@ static void matrix_int(void) {
++index;
if(index >= 3) {
++cycle;
index = 0;
}
move_line(index);
write_line(pixels + (index * 3));
write_line(pixels + (index * 3), cycle & 3);
}
void matrix_start(void) {
matrix_init();
start_timer(PRESCALE_64, 125, matrix_int);
start_timer(PRESCALE_64, 32, matrix_int);
}
void matrix_stop(void) {
@ -55,16 +57,22 @@ void matrix_stop(void) {
}
void matrix_show(void) {
uint8_t i;
for(uint8_t n = 0; n < 4; ++n) {
uint8_t i;
for(i = 0; i < 3; ++i) {
move_line(i);
write_line(pixels + (i * 3));
wait_ms(3);
for(i = 0; i < 3; ++i) {
move_line(i);
write_line(pixels + (i * 3), n);
wait_ms(1);
}
}
}
void matrix_set(uint8_t x, uint8_t y, uint8_t active) {
pixels[x*3+y] = active;
pixels[x*3+y] = active ? 4 : 0;
}
void matrix_brightness(uint8_t x, uint8_t y, uint8_t brightness) {
pixels[x*3+y] = brightness;
}